Comments on: Pages & Subpages – Is Parent?

By: HealthMatters | Round WordPress: Summer of Code, Kubrick Retired, How Tos, WebWare 100, and WordPress Fan Blogs

Sun, 10 May 2009 08:02:09 +0000

[...] Pages & Subpages – Is Parent? [...]

By: Peter

Peter — Sun, 03 May 2009 22:37:35 +0000

I just had to put together a function to find the topmost parent of a page - using your function as a template, here's what I came up with:

function get_topmost_parent($post_id){
$parent_id = get_post($post_id)->post_parent;
if($parent_id == 0){
return $post_id;
}else{
return get_topmost_parent($parent_id);
}
}

By: Peter Kahoun

Peter Kahoun — Mon, 20 Apr 2009 13:12:46 +0000

Very nice function. IMHO, why not to eliminate one parameter by mod. like this:

function has_parent($post_id, $post = false) { if ($post === false) global $post;

By: Peter

Peter — Mon, 30 Mar 2009 14:22:34 +0000

I've often had to do this when I put together a theme for a client who wants a CMS style site, but I've never come up with anything as elegant of the has_parent function!

I was about to comment on the fact that you were missing situations where the child was actually a grandchild - but it turns out it was just pretty enough that I missed it.

I'd never seen a really solid practical example of recursion until now. Brilliant.